Shuttle box for looms



y 13, 1952 J. CARTER SHUTTLE BOX FOR LOOMS 2 SHEETSSHEET 1 Filed March 14, 1950 INVENTOR.

LLA'f-r J CARTER,

ATTORNEYS L. J. CARTER SHUTTLE BOX FOR LOOMS May 13, 1952 2 SHEETSSHEET 2 Filed March 14, 1950 INVENTORI LATT J CARTER- ATTORNEY Patented May 13, 1952 UNITED" stares" PATENT OFFICE SHUTTLE BOX FOR LOOMS Latt J. Carter, Kanna'polis, N. 0. Application March 14, 1950, Serial No. 149,580

This invention relates to looms and more especially to an improvedshuttle box therefor.

Shuttle boxes generally include a front box plate, a rear box plate and a rear binder. The proximate surfaces of the rear binder and the front box plate have heretofore been provided with a leather liner so as to frictionally hold a boxed shuttle between the front box plate and the binder and to protect the shuttle against wear and also to prevent wear of proximate surfaces of the binder, the rear box plate and the box front.

It is well known that the leather material used on the proximate faces of the front box plate and the binder become worn and otherwise damaged through the repeated impact of the shuttle as it enters and leaves the shuttle box thus requiring that these leather liners b replaced periodically. Also, in many instances the front surface of the back box,plate and any other metallic wearing surfaces on the front box plate and the rear binder become scored thus requiring that they be discarded and, in many instances, causing damage to the shuttle.

It is, therefore, an object of this invention to provide a front box plate, a rear box plate and a shuttle box rear binder, the wearing surfaces of which are chromium plated so as to provide a closely grained or super-smooth finish to the surfaces thereof which are to be engaged by the movement of the shuttle into and out of the shuttle box. Since the chromium is substantially more wear resistant than the wearing surfaces of the usual shuttle box front and the rear box plate and the binder, the surfaces of the same, which are engaged by the shuttle, will not become scored with constant movement of the shuttle into and out of the shuttle box and, further, it is not necessary to provide a leather liner on th working surfaces of these parts as heretofore has been the case.

By chromium plating the working surfaces of the shuttle box front plate, rear plate and the binder, it is possible to salvage parts which heretofore have been discarded as being of no further use since the grooves or any other imperfections caused in the working surfaces of these parts may be filled wtih suitable metal and then made smooth by the chromium plating of these surfaces.

Some of the objects of the invention having been stated, other objects will appear as the description proceeds, when taken in connection with the accompanying drawings, in which Figure 1 is a top plan view of a shuttle box and a portion of one end of a lay of a loom;

4 Claims. (Cl. 139-183) Figure 2 is a fragmentary front elevation of a portion of the shuttle box shown in Figure 1;

Figure 3 is an isometric view looking at the opposite side, the outer end and top surfaces of the shuttle box front shown in Figure 2;

Figure 4 is an enlarged vertical sectional view taken substantially along the line 4-4 in Figure 3;

Figure 5 is an enlarged vertical sectional view taken substantially along the line 55 in Figure 3; 4

Figure 6 is a rear elevation of the shuttle box shown in Figure 1 and showing the binder and back box plate associated therewith;

Figure 7 is an enlarged isometric view looking up at the lower surfaces of the back box plate shown in Figures 1 and 6 and also showing the inner end and the front surfaces of the back box plate extension shown in Figure 6;

Figure 8 is an enlarged vertical sectional view taken substantially along the line 8-8 in Figure 7;

Figure 9 is an enlarged isometric view looking at the lower and front surfaces of the back binder shown in Figures 1 and. 6 and also looking at the opposite side of the back binder from that shown in Figure 6; 7

Figures 10 and 11 are vertical sectional views taken along the lines lll-l0 and Hl I, respectively, in Figure 9 and showing the chromium plating applied to the inner or front surface of the back binder shown in Figure 9.

Referring more specifically to the drawings, the numeral H2 indicates an oscillatable lay of the loom which is usually supported on swords, not shown, and a rear box plate, designated broadly at H, is also adapted to be secured to one of the swords, not shown, as by a screw [2 which is shown in cross-section in Figure 6 and which penetrates a hole 9 in the back box plate I I. The box plate II is a part of a shuttle box broadly designated at I3. The shuttle box shown is of a type adapted to be associated with a filling replenishing mechanism of a type shown in U. S.

- Patent No, 1,552,388 of September 1,- 1925. However, the scope of this invention is not confined to a shuttle box of the type described nor to a so-called filling-replenishing loom.

The shuttle box I3 includes a lay end It having a longitudinally extending opening I5 therein through which an expelled bobbin is adapted to pass as a replenishing bobbin i6 is moved into a shuttle ll upon the shuttle I? being boxed in the shuttle box it between a rear binder 20 and a box front or front box plate broadly designated at 2|. The front box plate 2| is secured, as by screws 23 to the upper surface of the lay end l4. A weft yarn Ha extends from the eye of the shuttle I! to the proximate selvage of the cloth, not shown, and the box front 2| is provided with a groove 22 for reception of the yarn as it extends from the eye of the boxed shuttle l! to the selvage of thecloth. The shuttle box front 2| will be later described in detail.

The loom is also provided with a conventional protector rod -which is oscillatably mounted in bearings 26, only one of which is shown in Figure 6, secured by bolts 2'l' to the rear surface of the lay l0. 7

As theshuttle I! is thrown into the shuttle box |3, its outer end engages the usual picker l8 disposed on the upper end of a picker stick IS.

The protector rod 25 extends beyond the bearing member 26, in Figure 6, and has the lower end of a dagger finger hub 33 fixedly mounted thereon as by a screw 35. The da ger finger hub so has a daggerfinger 3 l threadably penetrating the same and this dagger finger 3| is secured in the dagger fin er hub all by lock nuts 32 and 33 (Figure l). V

The dagger fingerel is adapted to engage a pad 3-4, usually of leather, secured as by a screw 35 (Figure 11), to the rear surface and at the inner end of the rear binder 20. The conventional protector rod 25 has conventional'spring means, not shown, so as to normally urge the dagger finger 3i forwardly which will, in turn, urge the rear binder 2Q forwardly at its free end, the left-hand end thereof being pivotally mounted, as at 35 on the lay end i l. The bolt 35 also slidably penetrates a back box plate extension 40 which is an integral part of the back box plate I.

It will observed in Figure 9 that the back binder 29 has asleeve or bushing ll extending therethrough which is slightly longer than the vertical height of the corresponding portion of the back binder 26 so as to permit oscillation of the back binder 20 between the box back extension db and awa'sher 39 resting on the lay end i l and which is also sl-idably penetrated by the bolt- 35. y

The back binder 29 is restricted at its free end, as at 42, and it is this restricted portion 42 to which the pressure pad 3-5 is secured by the screw 35. The lower surface of this restricted portion 42 is adapted to slidably engage the upper surface of a tongue 43 integral with a vertically disposed plate portion'll l of the back box plate The bacl: box plate I I also has a horizontally disposed inwardly and upwardly curved flat portion :25 which"merges with the extension 48 and a liner #5, of "leather or other friction material, is secured, by counter-sunk screws 41, to the lower surface of the back box plate extension and exte'nds'along' the lower surface of the fiat portion t5, this friction material being curved back'over the inner free end of the'horizontally disposed fiat portion 45 and being secured to the upper surface thereof as by a screw 59 (Figure 1).

Now, referring again to the front box plate 2|, this front boxplaite 2| may be of any desired construction and, in the present instance, the front box plate 2% comprises an outer end portion 52. The outer end portion 52 has a suitable opening 53 therethrough which is provided for reception of the usual type of thread cutter such as is shown in United States Patent Number 2,208,560 of January 21, 1936. The shuttle box front 2| alsohas a longitudinally extending slot 54 therein, which curves upwardly and toward the inner end, indicated at 55'. of the shuttle box front 2|. This slot 54 defines an upper longitudinally extending portion 56 and a lower portion 57, the lower portion 57 merging with the inner end portion 55. The groove 22, heretofore described, extends along the inner or rear surface of the inner end portion 55 of the shuttle box front 2 I.

A relatively short liner 58, preferably of leather, is preferably secured to the inner or rear surface of the inner end portion 55 of the shuttle box front 2| and the inner end portion 55 has a slot 6| therethrough through which a portion 62 of the liner 55 extends, this portion 62 being bent or curved back upon itself on the opposite side of the inner end portion 55 of the shuttle box 2| and being penetrated by a screw 63 which is threadably embedded in the inner end portion 55 of the shuttle box 2| for securing the liner to to the inner surface thereof. This liner 52 also has 'a groove or depression 56 on the inner or rear surface thereof which coincides with the groove 22 in the rear or inner surface of the shuttle box front 2| (Figure 5). The liner 58 serves to prevent the shuttle H from rebounding upon being thrown into the shuttle box.

The inner end of the liner 69 extends around the innermost end 55 of the shuttle box front 2| and is secured, as by a screw 66 (Figure 2), to the inner end of the inner portion 55.

It is to be noted in Figures 2 and 3 that the inner face of the box front 2| from the slot 6| to the innermost end of the box front is more remote from the path of the shuttle than the remainder o'fithe inner face of the box front so as to prevent the leather liner' 66 from projecting tooclose to th'epath of the shuttle.

The upper longitudinally extending portion 56 of the shuttle box front 2! has the usual forwardly projecting thread catcher 51 thereon, the inner end p'ortionf55 of the shuttle box front 2! also having a similar projection m thereon, these projections 67 and if? being integral with the shuttle box front 2| and which are conveniently provided for engaging a new filling as the lay It moves forwardly at the first pick movement following abobbin transfer operation.

The structure heretofore described is that of a typical shuttle'box and the primary object of this invention is to provide means for extending the useful life of those parts which are engaged by the shuttle l'iand to also extend the period of usefulness of the shuttle. Referring to Figures 4, 8, 10 and ll it will be observed that a greatly exaggerated thickness of chromium plating is applied to certain surfaces on the front box plate 2|, the back box plate I and the back binder 20. Theactual thickness of thechromium plating is approximately @1 of an inch. This chromium plating is applied in the usual manner of electrolysis.

The chromium plated surfaces of the shuttle box front 2| are the inner surface indicated at C-| and the Upper surface indicated at 0-2. The so-calledinner surface of the shuttle box front 2| includes the inner surfaces of the upper end portion 52, the inner end portion 55, with the exception of the area covered by the liner 6%, and the inner surfaces of the longitudinally extending portions 55 and 51. The upper surfaces, which have the chromiumplatin C-2 thereon include the upper surfacesof the outer and inner end-portions 52 and 55 and the upper surface of the longitudinally extending portion 56 as well as the projections, Gland 10.

In Figures '7 and 8; there is shown the surface of the back box plate II which is chromium plated surface being indicated at -3 and which is the front surface of the vertically disposed portion 44 and which is engaged by the side of the shuttle l1 remote from the side which engages the inner surface of the shuttle box front 2|. This surface C-3 of the vertically disposed portion 44 of the back box plate II, in Figures 7 and 8, also has approximately A inch thickness of chromium plating applied thereto although this thickness is exaggerated in Figure 8.

Now, referring to Figures 9 and 11, the front surface of the rear binder 20 is also chromium plated, this chromium plated surface being indicated at 0-5, the showing in Figures 10 and 11 being illustrative of the fact that the chromium plated surface (J- extends throughout the length of the rear binder 20 although, due to the curvature of the front surface of the rear binder 20, the rear surface of the shuttle (I will engage the portion of the front surface 0-3 of the rear binder 20 from a point intermediate the ends thereof to a point adjacent the sleeve 4|.

It is thus seen that I have provided an improved shuttle box structure wherein the wearing surfaces of the shuttle box front 2|, the back box plate II and the back binder 2B are chromium plated thus eliminating the cause of many loom stoppages due to the very smooth surface which is possible as a result of this chromium plating being applied to the working surfaces of these parts. By chromium plating these working surfaces, it eliminates the dimensional changes which usually take place in the ordinary types of wood back binders due to humidity and also eliminates the appearance of jerked-ends" due to the surface of the leather being rough or having small projections thereon which might snag the weft yarns.

The chromium plating of the working surfaces of these parts of the shuttle box also decreases the cost of operation of the looms inasmuch as it will not be necessary for an operator to apply leather to the back binder or to the shuttle box front. This will also substantially increase the useful life of the shuttle l1 due to the reduction of friction since it is well known that the smooth surface caused by the chromium plating will greatly reduce friction as the shuttle leaves and enters the shuttle box as compared to the shuttle entering and leaving a shuttle box wherein leather or a similar material is applied tothe working surfaces of the back binder 20 and the shuttle box 2|.

In the drawings and specification there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only, and not for purposes of limitation, the scope of the invention being defined in the claims.

I claim:

1. In a shuttle box having a box front and a rear binder and also having a back box plate for reception of a shuttle, the inner face of the box front which is nearest the path of the shuttle being recessed at its inner end for reception of a liner and the remainder of the inner face of the box front being chromium plated.

2. In a loom having a shuttle box provided with a box front having a surface adapted to be engaged by a shuttle when boxed, the innermost end of said surface being recessed for reception of a liner and the remaining portion of said surface being plated with chromium.

3. A shuttle box front having its inner surface provided with a depression near the inner end of the box front, a liner disposed in said depression, and the remainder of the inner surface of the box front being chromium plated.

4. A shuttle box front having its inner surface provided with a depression near the inner end of the box front, a liner disposed in said depression, and the remainder of the inner surface of the box front being plated with a hard non-corrosive metal.

LATT J. CARTER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,364,740 Menking Dec. 12, 1944 2,468,709 Budzyna Apr. 26, 1949 

